CN219035582U

CN219035582U - High-pressure low-noise multistage pressure reducing regulating valve

Info

Publication number: CN219035582U
Application number: CN202222725165.8U
Authority: CN
Inventors: 李云勉; 姜丽
Original assignee: ZHEJIANG SHANNENG INSTRUMENT CO LTD
Current assignee: ZHEJIANG SHANNENG INSTRUMENT CO LTD
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-05-16
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses a high-pressure low-noise multistage pressure reducing regulating valve which comprises a valve body, wherein a convex cover is fixed on the upper surface of the valve body, a threaded valve rod is connected to the inner side surface of the convex cover through threads, a valve block is arranged at the lower end of the threaded valve rod, a multistage pressure reducing and reducing device is arranged on the outer surface of the threaded valve rod, and the multistage pressure reducing and reducing device can reduce noise and pressure during descending plugging, so that water flow impact is buffered conveniently, and noise is reduced.

Description

High-pressure low-noise multistage pressure reducing regulating valve

Technical Field

The utility model relates to the field of regulating valves, in particular to a high-pressure low-noise multistage pressure reducing regulating valve.

Background

The pressure reducing regulating valve is a common valve for regulating the pressure of a medium, and when the medium flows to a valve core part, the flow speed is rapidly increased due to necking phenomenon caused by the throttling action of the valve core and a valve seat, and the pressure is rapidly reduced;

in the existing regulating valve, when the valve block descends to block, water flow impact is large, pressure is large, depressurization blocking is inconvenient, buffering is inconvenient when water flow impact occurs, and noise is large when impact occurs.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a high-pressure low-noise multi-stage pressure reducing and regulating valve, which can reduce noise and pressure when a plug is lowered by arranging a multi-stage pressure reducing and regulating device, so that water flow impact is buffered conveniently, and noise is reduced.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a multistage pressure reducing and regulating valve of high pressure low noise, includes the valve body, the upper surface of valve body is fixed with the protruding lid, the inboard surface of protruding lid has the screw thread valve rod through threaded connection, the lower extreme of screw thread valve rod is provided with the valve piece, the surface of screw thread valve rod is provided with multistage pressure reducing and reducing device that makes an uproar, through setting up multistage pressure reducing and reducing device that makes an uproar, can make an uproar and reduce the pressure when the shutoff falls, the buffering rivers are strikeed to be convenient for, noise reduction.

Further, multistage depressurization device that makes an uproar that falls includes multilayer drum, aperture, multilayer drum cup joints the surface at the screw thread valve rod, aperture evenly distributed sets up the surface at multilayer drum, and when descending shutoff, rivers can flow in from aperture, can cushion the depressurization, but the aperture flows in the reposition of redundant personnel depressurization to reduce the impact force, reduce the noise that sends.

Furthermore, the multilayer cylinder adopts a three-layer cylinder structure, is distributed in three layers and can be used for buffering and reducing pressure in a grading way.

Further, the outer surface of the sleeving part of the multi-layer cylinder of the threaded valve rod is provided with a first annular positioning protrusion, so that the positioning is facilitated.

Further, the lower end surface of the valve block is provided with a net shell, so that noise can be reduced when the valve block is impacted.

Further, the upper end surface of valve piece is fixed with the arch seat, and the screw thread valve rod lower extreme is pegged graft at the inboard surface of arch seat, and the lower extreme surface of screw thread valve rod is provided with the second annular location arch, can make screw thread valve rod location rotation, can drive the valve piece and reciprocate.

Further, the multilayer cylinder is made of stainless steel materials, and is not easy to rust.

Compared with the prior art, the utility model has the advantages that:

(1) Through setting up multistage depressurization device that makes an uproar that falls, can fall the depressurization when descending the shutoff, the buffering rivers are strikeed, noise reduction.

(2) The multilayer drum is sleeved on the outer surface of the threaded valve rod, the small holes are uniformly distributed on the outer surface of the multilayer drum, when the plug is lowered, water flow can flow in from the small holes, buffer depressurization can be carried out, the small holes can flow in and shunt depressurization, the impact force is reduced, the noise emitted is reduced, the multilayer drum adopts a three-layer drum structure, three layers of the multilayer drum are distributed, and the depressurization can be buffered in a grading manner.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a bottom view of the multi-stage noise reduction and depressurization device of the present utility model;

fig. 3 is a schematic diagram of a multi-stage noise reduction and voltage reduction device according to the present utility model.

The reference numerals in the figures illustrate:

the valve comprises a valve body 1, a convex cover 2, a threaded valve rod 3, a multi-stage noise-reducing and pressure-reducing device 4, a multi-layer cylinder 40, a small hole 41, a first annular positioning bulge 30, a net shell 50, an arch seat 51 and a second annular positioning bulge 52.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, a high-pressure low-noise multistage pressure reducing regulating valve comprises a valve body 1, and is characterized in that: the upper surface of the valve body 1 is fixedly provided with a convex cover 2, the inner side surface of the convex cover 2 is connected with a threaded valve rod 3 through threads, the lower end of the threaded valve rod 3 is provided with a valve block 5, the outer surface of the threaded valve rod 3 is provided with a multi-stage noise reduction and pressure reduction device 4, and the multi-layer cylinder 40 is made of stainless steel materials and is not easy to rust;

the multi-stage noise reduction and depressurization device 4 comprises a multi-layer cylinder 40 and a small hole 41;

the multi-layer cylinder 40 is sleeved on the outer surface of the threaded valve rod 3, small holes 41 are uniformly distributed on the outer surface of the multi-layer cylinder 40, the multi-layer cylinder 40 adopts a three-layer cylinder structure, and a first annular positioning protrusion 30 is arranged on the outer surface of the sleeved part of the multi-layer cylinder 40 of the threaded valve rod 3;

when in use, the threaded valve rod 3 is twisted downwards, the threaded valve rod 3 can be driven to rotate downwards, the multilayer cylinder 40 can be driven to move downwards, the impact of water flow can be blocked when the multilayer cylinder moves, when the multilayer cylinder is plugged downwards, the water flow can flow in from the small hole 41, the buffer depressurization can be carried out, the small hole 41 can flow in the shunt depressurization, the impact force is reduced, the noise generated is reduced, the three layers of the multilayer cylinder are distributed, and the buffer depressurization can be carried out in a grading manner;

example 2

Referring to fig. 1-3, a high-pressure low-noise multi-stage pressure reducing and regulating valve comprises a valve body 1, wherein a convex cover 2 is fixed on the upper surface of the valve body 1, a threaded valve rod 3 is connected to the inner side surface of the convex cover 2 through threads, a valve block 5 is arranged at the lower end of the threaded valve rod 3, and a multi-stage noise reducing and pressure reducing device 4 is arranged on the outer surface of the threaded valve rod 3;

the net shell 50 is arranged on the lower end surface of the valve block 5, and when the valve block 5 descends to block, the net shell 50 can be impacted when the valve block 5 is impacted, so that noise can be reduced;

the upper end surface of the valve block 5 is fixedly provided with an arch seat 51, the lower end of the threaded valve rod 3 is inserted into the inner side surface of the arch seat 51, the outer surface of the lower end of the threaded valve rod 3 is provided with a second annular positioning bulge 52, and when the threaded valve rod 3 rotates, the second annular positioning bulge 52 can be positioned and rotated at the arch seat 51, so that the valve block 3 can be conveniently driven to move up and down, and the use is convenient.

Claims

1. The utility model provides a multistage pressure reducing regulating valve of high pressure low noise, includes valve body (1), its characterized in that: the valve is characterized in that a convex cover (2) is fixed on the upper surface of the valve body (1), a threaded valve rod (3) is connected to the inner side surface of the convex cover (2) through threads, a valve block (5) is arranged at the lower end of the threaded valve rod (3), a multistage noise reduction and pressure reduction device (4) is arranged on the outer surface of the threaded valve rod (3), the multistage noise reduction and pressure reduction device (4) comprises a multilayer cylinder (40) and small holes (41), the multilayer cylinder (40) is sleeved on the outer surface of the threaded valve rod (3), and the small holes (41) are uniformly distributed on the outer surface of the multilayer cylinder (40).

2. The high-pressure low-noise multi-stage pressure reducing regulating valve according to claim 1, wherein: the multilayer cylinder (40) adopts a three-layer cylinder structure.

3. The high-pressure low-noise multi-stage pressure reducing regulating valve according to claim 1, wherein: the outer surface of the sleeving part of the multilayer cylinder (40) of the threaded valve rod (3) is provided with a first annular positioning bulge (30).

4. The high-pressure low-noise multi-stage pressure reducing regulating valve according to claim 1, wherein: the lower end surface of the valve block (5) is provided with a net shell (50).

5. The high-pressure low-noise multi-stage pressure reducing regulating valve according to claim 1, wherein: the upper end surface of valve piece (5) is fixed with arch seat (51), and screw thread valve rod (3) lower extreme is pegged graft in the inboard surface of arch seat (51), and the lower extreme surface of screw thread valve rod (3) is provided with second annular location arch (52).

6. The high-pressure low-noise multi-stage pressure reducing regulating valve according to claim 1, wherein: the multilayer cylinder (40) is made of stainless steel.